Garage Door Maintenance & Servicing in Sandton

The balance test, and why everything hangs on it

Release the motor, lift the door to waist height and let go. A healthy door stays exactly where you left it. One that sinks is under-sprung; one that rises is over-sprung. Either way, the motor is now making up the difference on every single cycle.

That is the mechanism behind most premature motor failures we attend. The motor did not fail because it was a bad motor — it failed because it spent two years lifting a door that its springs should have been lifting.

Balance drifts slowly and invisibly as springs fatigue, which is exactly why it needs measuring annually rather than noticing.

Catching a spring before it snaps

A spring gives warning: the coils develop surface rust, the spacing goes uneven, the door starts feeling heavier by hand and opening a little slower. None of that is dramatic enough to prompt a call, and all of it is visible to someone looking for it.

Replacing a fatigued spring on a scheduled visit is a planned cost. Replacing a snapped one at seven on a Sunday evening with a car locked inside is the same part at an after-hours rate — see garage door spring repair.

Cables, rollers and the cheap parts that cause expensive damage

A lift cable starts fraying at the bottom bracket, where it takes the sharpest bend. It is a visible strand or two out of place, months before it lets go. A seized roller announces itself as a squeal at one point in the door's travel.

Both are inexpensive parts, and both do disproportionate damage when they fail. A snapped cable drops a corner of the door and bends tracks; a seized roller gouges the track channel it runs in until that section needs replacing too.

Lubrication done properly

Most doors we service have been lubricated at some point by someone with a can of general-purpose spray, and it has usually made things worse. General-purpose penetrating sprays wash out the grease in sealed roller bearings and then evaporate, leaving the bearing dry.

The correct approach is a proper silicone or lithium-based garage door lubricant, applied to roller bearings, hinge pivots, the spring coils and the end bearings. The tracks themselves are deliberately left dry — a lubricated track collects grit and turns into an abrasive paste.

Safety systems, tested rather than assumed

The infrared beams across the opening and the motor's auto-reverse are the two things standing between a closing door and whatever is underneath it. Both degrade quietly: lenses film over, a bracket gets knocked out of alignment, a force setting gets turned up during a previous repair until the auto-reverse effectively stops working.

Every service tests them the only way worth testing them — by putting an obstruction under the closing door and confirming it reverses cleanly.

The load-shedding checks

Backup batteries in garage door motors are consumables with a typical life of two to three years, and repeated deep discharges shorten that considerably. A battery that has quietly died gives you no warning at all until the power goes out and the door will not open.

A service load-tests the battery rather than just confirming the unit powers up, and checks that the stored travel limits have not been corrupted by hard power cuts — a common cause of a door that has started stopping short or reversing for no obvious reason.

Annually for a typical household door opened a few times a day. Every six months for doors that cycle heavily — complexes, households running two or three vehicles in and out daily, short-term rentals and any door on business premises.

There are three other moments worth booking one regardless of the calendar: immediately after buying a property, because the door's history is unknown; in the first year of a new door, while any settling issue is still inside the workmanship warranty; and after any repair carried out by someone else, to confirm the balance and force settings were reset properly.

Where a door is already showing symptoms — grinding, shuddering, sitting skew — a service is the wrong booking. That is a garage door repair, and a service afterwards.

A door tells you it is deteriorating months before it stops. These are the signals worth acting on rather than living with.

• A new noise, or an old noise that has got louder or moved to a different point in the travel
• The door no longer staying put when stopped halfway with the motor released
• Juddering, or climbing in a series of jerks instead of one smooth run
• Visible rust, gaps or uneven spacing in the spring coils
• A frayed strand on a cable, or one side of the door sitting lower than the other
• The door occasionally reversing on the way down for no obvious reason
• The motor sounding like it is working harder than it used to

Any of these is worth a call rather than a wait. Most are a short adjustment if caught early and a full repair if left.